Oil gauge for oil drums



April 15, 1952 A. NEUMANN oIL GAUGE Foa on. DRUMS' Filed Feb. 2l, 1949 INVENT OR.

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Patented Apr. l5, 1952 UNITED STATES PATENT OFFICE OIL GAUGE FOR OIL DRUMS Albert Neumann, Milwaukee, Wis. Application February 21, 1949, Serial No. 77,580

1 Claim.

This invention relates to improvements in oil gauges for oil drums, and more particularly to a novel oil gauge of the transparent tubular type.

An object of the invention is to provide a device of the type which includes a transparent plastic tube which may be conveniently inserted and securely held within the end rim of a conventional oil drum and which will indicate the exact level of oil held within said drum.

Another object-of the invention is to provide a device of the type which will include a semiflexible plastic transparent tubing and means for securely retaining the same eXteriorly of an oil drum within an end rim thereof.

Other and further objects of the invention will appear as the description proceeds, reference being had to the accompanying drawing, in which:

Fig. 1 is a side view partly in section and partly in elevation showing an oil gauge embodying the invention in position on an oil drum.

Fig. 2 is a fronted view` of the ou drum with said gauge in place.

Fig. 3 is a side view partly in section and partly in elevation of a modified form of the invention.

Fig. 4 is an exploded view of a fragmentary portion of the upper end of the tubing and the` I clamps for ailixing the same to the rim of an oil threadingly receives a. union 25 which is exteriorly threaded at 26 and interiorly threaded at 2l to receive a spigot 28 of conventional type. The union 25 carries an exteriorly threaded nipple 29 which is threadingly engaged with the interior of a flexible plastic tube 30 at the lower end thereof.

In use, the lower end II of tube I6 is rst threaded over the nipple I5. The upper end 23 of said tube I6 is then inserted within the aperture '22 of the bracket 20. The clamp I8 is then engaged over the bead I9 of the rim II and forced on tightly. Thesemi-flexible character of the tubing I6 permits of this operation. After the assembly is in place, a tank I0 may be filled with oil or other liquid. As the contents of the tank I0 are consumed, the level of the liquid in the tube I6, as at 3| of Fig. l, will indicate the level, as at 32, of the contents of the drum.

It will be understood that the device is capable of many .modifications in structure and design, without departing from the spirit of the invention, within the scope of the appended claim.

Having thus described the invention, what is claimed and desired to be Vsecured by Letters Patent of the United States, is:

A liquid level gauge for an oil drum including a transparent semi-flexible plastic tube having an internal thread at the lower end thereof, a

, threaded spigot having an upwardly directed nipnumeral I0 refers to a conventional oil drum hav- I ing the longitudinally extended end lrim II and the conventional spigot I2 inserted in a plug I3 in a front wall I4 of said drum. In the preferred form of the invention, the spigot I'2 has an integral vertically upstanding nipple I5 carrying an external thread. A transparent -plastic semi-flexible tube member I6 is internally threaded at its lower end at Il thereof and is threadingly engaged with the nipple I5. A clamp member I8 is formed of metal sufliciently strong to retain it against anything less than forcible removal from the bead at I9 of the rim II.

the clamp I8 and has a horizontal portion 2l apertured centrally at 22 to receive and retainA the upper end 23 of the tubing I6.

In a modified form of the invention, a plug' Av bracket portion 20 is subjoined and integral with:

ple threadingly engaged in the lower end of said tube, an S-shaped spring clip detachably receiving the end rim of the oil drum between itsl upperand central loop, the lower loop of said clip being `provided with an aperture receiving and retaining the upper end of said tube spaced inwardly of said rim edge.

ALBERT NEUMANN.

file of this patent:

UNITED STATES PATENTs Number Name Date 964,960 Everson July 19, 1910 977,216 Newman Nov. 29, 1910 1,078,325 Vickrey Nov. 11, 1913 1,156,998 Heberling Oct. 19, 1915 

